The constructors of the Gotthard Base Tunnel in Sedrun have reached two further milestones. The completed tunnel shell of the north section has been handed over to the owner, AlpTransit Gotthard Ltd. Also, the southbound drives have crossed the original section boundary towards Faido.
At the end of October 2009, the technical inspection of both of the completed single-track tunnels in Sedrun North took place. As a result, the two tunnels north of the Sedrun multifunction station as far as the boundary to the Amsteg section were handed over to AlpTransit Gotthard Ltd. on time and within the cost budget.
Also at this time, the south drive in the west tunnel attained the originally ordered Iength. Since then, driving has continued in the lot boundary extension, which was ordered approximately one year ago and allows driving a further 1.5 km to the south. Without this measure, driving would have had to be terminated and wait for the arrival of the tunnel boring machine from Faido.
Both milestones could only be achieved thanks to the great efforts of the employees of the Transco Sedrun consortium, the Gotthard Base Tunnel South consortium, and the Sedrun section of AlpTransit Gotthard Ltd.
A further 4.5 km remain for the tunnellers to excavate between Sedrun and Faido. Final breakthrough in the first tunnel of the 57-kilometres-long Gotthard Base Tunnel is scheduled to take place in November 2010. In total, more than 92% of the approximately 151.8 kilometres of shafts, passages, and tunnels of the Gotthard Base Tunnel have now been excavated. Commercial operation of the Gotthard Base Tunnel with scheduled train services is expected to start at the end of 2017.